http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-S56164150-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_630b360599ea5cf4b5bcbc0c6c0a3e2d |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C67-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C227-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C227-26 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C07C229-16 |
| filingDate | 1980-05-21-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_122ba993db541b674d9c53545217f5e1 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_bf70096186abb3d46e7d8605c81980c6 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_83221e6f7a03142ac79ee2294725c88d |
| publicationDate | 1981-12-17-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | JP-S56164150-A |
| titleOfInvention | Preparation of alkali salt of iminodiacetic acid |
| abstract | PURPOSE: To obtain the titled compound useful as a compound having chelating actions, etc. in high selectivity by hydrolyzing an alkali salt of N-cyanomethylaminoacetic acid in the presence of a caustic alakli under specific conditions. n CONSTITUTION: A mixed aqueous solution of an alkali salt of N-cyanomethylaminoacetic acid and an caustic alkali (e.g., Na 2 CO 3 , etc.) is previously kept at a temperature <60°C for at least 5min and heated to a temperature from 60°C to the boiling point, to give the titled compound. The concentration of the aqueous solution of alkali salt of N-cyanomethylaminoacetic acid is usually about 5W50wt% preferably. n EFFECT: When the mixed aqueous solution is previously kept at ≥60°C, selectivity for sodium iminodiacetate is lowered abruptly and selectivity for sodium nitriloacetate is raised. When it is previously kept at <60°C, sodium iminodiacetate is obtained in a selectivity 90wt%. n COPYRIGHT: (C)1981,JPO&Japio |
| priorityDate | 1980-05-21-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 25.